Water heater for ranges



Aprfl 15, 1941. B. H. SIMPSON WATER HEATER FOR RANGES Filed July 3, 1939 4 Sheets-Sheet 1 A ril 15, 1941. s. H. SIMPSON WATER HEATER FOR RANGES Filed July 3, 1939 4 Sheets-Sheet 2 fiavehz or Benjamin J)? 6132911901) .5 Jul! Ailorneys April 15, 1941. B. H. SIMPSON 2,238,375

- WATER HEATER FOR RANGES Filed July 3, 1939 4- SHeets-Sheet s April 15, 1941 i I B.- H. SIMPSON 2,238,375

WATER HEATER FOR RANGES Filed July 3, 1959 14 Sheets-Sheet 4 I77 0613501 Ben 01min J5 ding n90]:

Patented Apr. 15, 1941- UNITED STATES PATENT OFFlCE WATER HEATER FOR RANGES Benjamin H. Simpson, Minneapolis, Minn. Application July 3, 1939, Serial No. 282,687

7 Claims.

My present invention relates particularly to stoves of the type generally designated as ranges; but from a broad point of view provides an improved water heating tank wherein the tank is applied to or around the outlet flue of the stove, in such manner that the heat discharged into or through the flue will be directly radiated and conducted into the water of the tank.

The tank 7 is also applied in such a way that heat radiated from the body of the stove will be absorbed in the water of the tank.

This improved tank is so designed that it may be incorporated in the stove or range in the manufacture thereof or may be readily applied to ranges and the like that are not primarily equipped with a water heating tank, or that may be applied as auxiliary heaters to stoves that or subsequently applied thereto, affords a more efficient water heater.

By the application of this improved tank as indicated, and especially when extended above the top of the stove, and by extending a water discharge pipe through a heated chamber of the stove and providing the discharge pipe with a faucet outside of the stove, an arrangement is provided where the water in the discharge pipe will be kept at a high temperature thereby affording a comparatively smallsupply of very hot water available for various uses, such as for making tea or coffee or for washing the hands, for example.

The invention is illustrated in the accompanying drawings wherein like characters indicate like parts throughout the several views.

Referring to the drawings:

Fig. 1 is a view in perspective with some parts broken away showing the invention applied to or incorporated with a range not provided with the customary tank and water heater at an extended end thereof but provided with my improved tank for water heaters;

Fig. 2 is a fragmentary perspective showing portions of the improved water tank and heater looking at the same, in respect to Fig. l, in a direction from the front and toward the right hand side;

Fig. 3 is a view partly in side elevation but chiefly in vertical section on the line 3-3 of Fig. 1;

Fig. 4 is an enlarged fragmentary section taken on the same section line as Fig. 3;

Fig. 5 is a view in perspective with some parts broken away showing the improved tank of the same structure as that illustrated in Figs. 1, 2 and 3 except that an auxiliary coil is placed in the flue of the tank;

Fig. 6 is .a fragmentary section taken on the line 6-6 of Fig. 5; and

Fig. 7 is a fragmentary view on a large scale taken on the same section line as Fig. 3 but illustrating a slightly modified structure, including the modified arrangement of the auxiliary heating coil.

Referring first to the construction illustrated in Figs. 1 to 4 inclusive, numeral 10 indicates as an entirety a standard or commercial form of range having the customary grate equipped fire pot II and flame outlet flue back elbow l2 with upstanding annular collar l3. Also, as shown, the range; is provided with the conventional upstanding splasher. back I4 that supports the high closet warming oven 15.

The range or stove may take various forms, however, insofar as this invention is concerned, but the invention is particularly applicable to ranges of the type provided with flame outlet elbows at the back thereby adapting my invention for application to the range in a very desirable and efficient way.

My improved water heater involves a tank which, for ready and eflicient application to the range, has an elongated front face or wall adapting it to fit closely against the splasher back I4, preferably with a portion thereof extending above and in close contact with the rear wall of the warming oven IS. The bottom of this tank I6 is adapted to rest upon the flue back elbow l2. At its intermediate portion the tank I6 is provided with a large flame-passage or outlet flue H, the lower end of which is adapted to be telescoped over the collar I3 as best shown in Fig. 3. This outlet flue I1 is preferably upwardly tapered so that its walls will be brought into close contact with the upwardly moving and burning gases or products of combustion. The tank and the flue ll are preferably made of light sheet metal and their joints are united by spot welding or other means producing water and steam tight joints. The upper end of the flue I1 is adapted to receive the first stove pipe section 18 which latter, of course, leads to the chimney stack.

Water is adapted to be supplied to the tank IS in any suitable way but preferably through openings in the top of the tank. The major openings are preferably normally covered by hinged cover plates 19 on the ends of the top of the tank. To provide for discharge of vapors for humidifying purposes the top of the tank is provided with vapor discharge passages 20, shown and preferably formed in the cover plates 19 and adapted to be opened more or less by sliding dampers 2|.

v rectly supporting the extended portions of The hot water from the tank I 6 is arranged to be drawn therefrom through water discharge pipe 22 which, in this preferred arrangement, taps the bottom of the tank, is extended through the upper rear portion of the combustion chamber I l and from thence out through the end wall of the stove and is terminated in a faucet 23. The purpose of extending this pipe through the combustion chamber is, in the first place, to utilize as much as possible of the heat of combustion for water heating purposes; and, in the second place, to aflord a very quick supply of very hot water.

In the preferred arrangement a venting pipe 25 is extended from the top of the tank [6 into the interior of the pipe section I8. This pipe 25 is shown as provided with a valve 25 which, whenopen, permits vapor to escape from the tank into the pipe, but when closed shuts off such escape. When valve 25 is closed and ports or passages 20 in the top of the tank are opened, vapor will escape into the room for humidifying purposes.

In Fig. an auxiliary heating tube 25, preferably coiled, is. extended through the flue I! to increase the amount of heat absorbed from the flue and conducted into the water of the tank I 6. As additional supporting means for the tank, brackets 21 are shown as applied to the back of the range and positioned as shown by dotted lines in Fig. 1 and by full lines in Fig. 2.

The structure illustrated in Fig. 7 is like that already described except for the arrangement of the auxiliary heating tube. In the latter arrangement the auxiliary heating tube 28 has a coil 29 located partly in the elbow l2 and partly in the flue I! with one end connected through to the interior of the tank 16 through one side of the flue I! by a coupling 30 and with its other end extended outward through a nipple 3| in the elbow l2 and with its upturned end connected to the exterior of the tank l6 by a coupling 32.

The above described manner of applying the heating tank at the back of the range causes suflicient heat to be conducted or radiated into the warming oven [5 to keep dishes or food articles warm. Also the arrangement is such that the water in the tank will be kept warm or hot by heat conveyed from the stove and out through the flue. Of course, some considerable amount of heat will be directly conducted to the tank from the stove structure itself. Fig. 5 shows the tank and connections such as may be manufactured and sold for application to ranges subsequent to the manufacture and/or use of said ranges.

A preferred arrangement of the invention has been illustrated in the drawings but it will, of course, be understood that other modifications thereof may be made within the scope of the invention herein disclosed and claimed.

What I claim is:

1. A stove having at its back an upturned elbow for the discharge of the products of combustion, and a water tank applied at the back of the range in heat conducting contact with the top portion of the stove, said tank having a flue extended upward therethrough and connected to and forming continuation of the discharge passage of said elbow, said elbow affording a support for the intermediate portion of said tank, in further combination with supporting means applied, one on each side of said elbow and disaid tank.

2. A water heater for stoves including a, tank applicable to the stove and provided with a flue extended upward through said tank and at its lower end adapted for application to the outlet passage of said stove, the exterior of said flue being exposed at the interior of said tank and to the water contents thereof, and in which said tank is provided at its top with a damper equipped vapor discharge passage and is also provided at its top with a valve-equipped vent pipe adapted to be extended into the flue of the stove to which the tank is applied.

3. A water heater for stoves including a tank applicable to the stove and provided with a flue extended upward through said tank and at its lower end adapted for application to the outlet passage of said stove, the exterior of said flue being exposed at the interior of said tank and to the water contents thereof, and in which said tank is provided in its top with a hinged section having therein a damper equipped vapor escape passage.

4. A water heater for stoves including a tank applicable to the stove and provided with a flue extended upward through said tank and at its lower end adapted for application to the outlet passage of said stove, the exterior of said flue being exposed at the interior of said tank and to the water contents thereof, and in which said tank is provided in its top with a hinged section having therein a damper equipped vapor escape passage, and in which said tank is further provided with a valve equipped vent pipe adapted to be extended into the flue of the stove to which the tank is applied.

57 A range having at its back an upturned elbow for the discharge of the products of combustion, and a water tank applied at the back of the range in heat conducting contact with the top portion of the range, said tank having a flue extended upward therethrough and connected to and forming continuation of the discharge passage of said elbow, and in further combination with an auxiliary heating pipe extended from the lower portion of said tank into and through said elbow with its upper end communicating with the interior of said tank through a Wall of said flue.

6. A range having at its back an upturned elbow for the discharge of the products of combustion, and a water tank applied at the back of the range in heat conducting contact with the top portion of the range, said tank having a flue extended upward therethrough and connected to and forming continuation of the discharge passage of said elbow, and in further combination with an auxiliary heating pipe extended from the lower portion of said tank into and through said elbow with its upper end communicating with the interior of said tank through a wall of said flue, and a hot water pipe extended from the bottom of said tank through a heat chamber of the range and from thence to the exterior of the range and there provided with a normally closed faucet.

'7. A range having at its back an upturned elbow for the discharge of products of combustion, a water tank applied at the back of the range and rested upon said elbow in heat conducting contact with the range, said tank having a flue extended upward therethrough and connected to and forming a continuation of the said elbow, and a supporting connection between said range and tank offset from said elbow.

BENJAMIN H. SIMPSON. 

